Q.

Which of the following generates the proton gradient across the thylakoid membrane ?

a) Splitting of water in thylakoid lumen 

b) removal of electrons from stroma to outside during ETS

c) Reduction of NADP+ to NADPH by NADP reductase enzyme 

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a

a only

b

b only

c

a and b only

d

a , b and c

answer is C.

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Detailed Solution

Proton gradient is generated across the thylakoid membrane due to splitting of water, removal of electrons and also due to  reduction of NADP +

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Which of the following generates the proton gradient across the thylakoid membrane ?a) Splitting of water in thylakoid lumen b) removal of electrons from stroma to outside during ETSc) Reduction of NADP+ to NADPH by NADP reductase enzyme